Apparatus to control fluid flow through a tube



FIG. 1 is a front, top, and right side perspective view of the apparatus to control fluid flow through a tube, showing my new design;

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a back side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines shown in the figures represent portions of the apparatus to control fluid flow through a tube that form no part of the claimed design. 

CLAIM The ornamental design for an apparatus to control fluid flow through a tube, as shown and described. 